Starrett 384 Steel Parallels are hardened and ground to close limits .
They are indispensable for inspection and layout work or for various
setups on drill presses, milling and grinding machines, shapers, etc .
Furnished in pairs, 6" length, they are made from a special grade of
tool steel, hardened and accurately ground on the four sides . In tool
rooms or machine shops, several pairs of these parallels will be of
great value .